Load chock for wagon bolsters



Sept. 3, 1929. BAKER 1,726,729

LOAD CHOCK FOR WAGON BOLSTERS Filed July 23, 1928 2 Sheets-Sheet l fn'ventvr ZZZ (Fa/fer Arzornqy Sept; 3, 1929. J. H. BAKER LOAD CHOCK FOR WAGON BOLSTERS Filed July 23, 1928 2 Sheets-Sheet 2 Inventor Alto r72 qy Patented Sept. 3, 1929.

UNITED STATES JOHN H. BAKER, 0F ZDLO, MISSISSIPPI.

LOAD GHOCK FOR WAGON BOLSTERS.

Application filed July 28,

The present invention relates to load chocks for logging wagons and trucks and has for its principal object to provide a plate adapted to fit over the wagon bolster with blocks or chocks slidably arranged on said plate and disposed at the opposite end of the bolster, whereby to prevent the load from rolling off of the ends of the bolster at either side of the wagon.

A further object is to provide means for securing the blocks in adjusted position longitudinally with respect to the bolster.

A still further object is to provide a device of this character which is admirably adapted for use upon trucks or wagons, when used for hauling logs, well tubing casings, or similar articles, which is of a simple and practical construction, strong and durable,

which may be easily and quickly installed in operative positions without necessitating any changes or alterations in the construction of the wagon or bolster, relatively inexpensive to manufacture, and otherwise well adapted to the purposes for which it is intended.

Other objects of the invention will become more readily apparent from the specific construction and combination of the various elements comprising the invention, reference being had to the accompanying drawings, forming a part hereof, wherein:

Figure 1 is a side elevational View of a wagon bolster showing my invention in position for use thereon.

Figure 2 is a top plan view.

Figure 3 is a vertical sectional view through. one of the chocks taken substantially along a line 3-3 of Figure 1.

Figure 4c is a fragmentary detail view of one of the chocks illustrating the pawl and ratchet engagement between the chock and bolster plate, and

Figure 5 is an end elevational view of the bolster with the plate attached thereto and with the chock removed therefrom.

Referring now to the drawings, in detail, for the purpose of illustration I have disclosed my invention adapted for use upon a wagon bolster of conventional construction as indicated at 5, which, as is well known in the art, extends transversely of the wagon frame or chassis. The upper or top edge of the bolster is designed for supporting the load, and upon said top edge is secured a plate 6, of a substantially L-shaped formation in cross section, and invertedly arranged 1928. Serial N0. 294,739.

withthe vertical portion of the plate extended downwardly and in spaced relation from one side of the bolster. The plate 6 may be secured to the bolster by means of bolts 8, having their heads 9 counter-sunk in the upper surface of the plate, or may be secured in any other suitable manner. The upper surface of the plate 6 is formed with a rib 10 extending longitudinally of the plate and transversely with respect to the truck or wagon upon which the bolster is mounted.

The block-11 is mounted for sliding movement upon the plate, adjacent each end of the bolster and is formed with a groove 12 at its under surface for receiving the rib 10, whereby to form the rib into a guide for the block during the longitudinal sliding movement thereof. The opposite ends of the block are inclined upwardly and inwardly as shown at 13, and supported by the block is .a metallic bracket 14, extending over the top and each side of the block with one end 15 turned inwardly under the edge of the plate 6, at the side of the bolster opposite from the vertical portion 7 of the plate. The bracket 14 is fixedly secured to the block by means of'bolts or screws 16. The end of the bracket disposed atthe side of the block adjacent the-vertical portion 7 of the plate extends downwardly in parallel relation with the outer side of said vertical portion and is bent inwardly and upwardly at the inner side of saidvertical portion of the plate, whereby to provide a channel within which the lower edge of the plate is slidably disposed. The pivot pin 18 extends transversely of the channeled portion of the bracket 14, upon which is pivotally mounted the pawl 19 having a projection 20 formed at one end thereof and adapted for engagement with the notches 21, formed in the lower edge of the vertical portion of the plate 7 The end of the pawl 19 disposed opposite from the projection 20 is formed into a handle 22, which extends outwardly from one edge of the support, in order to provide man ual means for releasing the pawl from engagement with the notches 21. Extending transversely of the lower portion of the channel, formed in the bracket, is a bolt 28, upon which is carried a wire spring 24, having its intermediate portion coiled about the bolt and its ends extending from one side of the bolt, with one end thereof indicating at 25,

spring pressed against the end of the pawl provided with the projection 20 and its opposite end 26, similarly held against the bracket 1d at the base of the channel. The spring thus yieldably retains the pawl in engaged position.

The outer end of the bolt 23 is formed into an eye 27, through which is attached one end of achain section 28, the opposite end of which'is secured to an eye 29, attached to the bolt intermediate its ends. The blocks at each'end of the bolster is thus provided with a separate chain section which is of suliicient length to permit the block to be removed from the end of the bolster and forms a permanent connection for the. block with the bolster whereby to prevent the block from falling under the load as the same is unloaded from the wagon, and which, it is apparent, would be aptto result in injury to the block.

It will be readily understood from the foregoing, that through the use of the chock formed by the block, the load will be secured in position upon the bolsters of the wagon and when desired, the load may be removed from the wagon by releasing the pawl at either end thereof, permitting the block to slide off theiends of the bolster, thus leaving the bolster free and unobstructed for the unloading of the log or other objects carried thereon.

It is obvious that the invention is susceptible of various changes and modifications, without departing from the spirit or scope of the invention or sacrificing any of its advantages, and I accordingly claim all such forms of the device to which I am entitled.

I claim:

1. A load chock for wagon bolsters comprising an L-shaped plate secured to the upper surface of said bolster and invertedly arranged with its vertical portion extending downwardly in spaced relation at one side of the bolster, a rib formed on the upper surface of the plate extending longitudinally with respect to the bolster, a block arranged for sliding movement on the plate having a groove formed in its under surface for receiving said rib, a bracket extending about the block and downwardly below the opposite edges of the plate with its opposite ends disposed inwardly of the opposite edges of said plate, whereby to prevent removal oi the block from the plate, a rack bar :lormed at the lower edge of said plate in a transverse direction, and means carried by the bracket engageable with said rack bar for securing the blocks in adjustable position on said plate.

2. A load chock 'lor wagon bolsters comprising an L shaped plate secured to the upper surface of said bolster and invertedly arranged with its vertical portion extending downwardly in spaced relation at one side of the bolster, a rib formed on the upper surface of the plate .ntending longjtiulinally with respect to the bolsler, a block arranged for sliding movement on the plate having a groove formed in its under surface for reeeiving said rib, a bracket carried by the block having its opposite ends disposed under the opposite edges of said plate whereby to 1)lt.- vent removal oi the block from the plate. a rack bar formed at the lower edge ol said plate, a pawl pivotally carried by the bracket engage-able with the rack bar for securing the block in longitudinally adjusted position on the plate, spring means vieldably retaining the pawl in engaged position, and a flexible member connecting the bracket with the bol ster for preventing separation of the block from the bolster after removal thereof from the end of the bolster.

In testimony waereof I aflix my signature.

JOHN H. BAKER. 

